Container having a head piece, which container can be or is filled with a medium

ABSTRACT

The invention relates to a container having a head piece ( 7 ), which container can be or is filled with a medium and is produced of plastic materials using a blow molding, filling, and sealing method, comprising a transition region ( 13 ) between the container ( 1 ) and at least one first type of a head surface ( 11 ), which is arranged on the head piece ( 7 ) at an end face and can be penetrated by means of a piercing or cutting part and extends with a specifiable curvature. Said container is characterized in that at least one second type of a head surface ( 41 ), which likewise has a specifiable. curvature, which is the same as the curvature of the head surface ( 39 ) of the first type, but preferably is different therefrom, is present on the head piece ( 7 ), that the head surfaces transition into each other in such a way that a whole surface is formed, which spans the free end of the transition region ( 13 ) directed away from the container ( 1 ), and that the head piece ( 7 ) is an integral component of the container ( 1 ).

The invention relates to a container having a head piece, whichcontainer can be or is filled with a medium and is produced from plasticmaterials using a blow molding, filling, and sealing method, comprisinga transition region between the container and at least one first type ofa head surface, which is arranged on the head piece at a front end andcan be penetrated by means of a piercing or cutting part and extendswith a specifiable curvature.

Plastic containers, which are produced with a blow molding, filling, andsealing method (BFS method), such as that described in EP 2 269 558 A1,for example, and which is also referred to as the bottelpack® system intechnical parlance, are used for staple and luxury foods and also veryeffectively in the medicinal sector for packaging of pharmaceuticals,diagnostic products, enteral nutrition and medicinal products, e.g.rinsing solutions and dialysis solutions. A significant advantage ofsuch containers intended for these kinds of applications is that thecontents only come into contact with a polymer forming the containermaterial, typically a plastic such as LDPE, HDPE or PP. With one-piececontainers produced and filled using this BFS method it is possible toguarantee the low germ levels/sterility of the contents over longerperiods of time. Containers which are intended for injections orinfusions have a special formation of the head region (hereinafterreferred to simply as “head piece”) for obtaining access to thecontainer contents. The integral formation of container and head piecemakes it possible to ensure the sterility of the filling material whilepermitting particularly efficient realization of the production process.Caps with elastomer sealing elements (DIN ISO 15759) are mounted on thehead piece by means of welding or injection molding. Such head pieces,as are known from DIN ISO 15759, for example, have a head surface in theform of a head membrane having a convex curvature, which can bepenetrated by means of a spike or a cannula when the container is used.Containers with such head pieces have several disadvantages. The use ofless sharp spikes is preferred because of the reduced risk of injury tothe users. This creates the risk that the head membrane pushes inwardsduring the piercing operation resulting in a leakage. Leakages can alsooccur when the head piece is punctured multiple times, e.g. with a spikefor a removal operation or with a cannula for the transfer of a separatedrug component into the corresponding container, before the actualadministration of the container contents.

Based on this prior art, the problem addressed by the invention is toprovide a container intended in particular for a medicinal use, which ischaracterized by improved functional characteristics and which ensures aparticularly safe handling, for example, in the case of parenteral orenteral administration.

According to the invention, this problem is solved by means of acontainer having the features of claim 1 in its entirety.

A significant special characteristic of the invention is that at leastone second type of a head surface, which likewise has a specifiablecurvature, which matches the curvature of the head surface of the firsttype, but preferably is different therefrom, is present on the headpiece forming an integral component of the container, wherein the headsurfaces transition into each other in such a way that an overallsurface is formed, which spans the free end of the transition regiondirected away from the container. Because the invention, instead ofhaving one uniform head membrane which spans the end of the head piecewith a standard curvature, provides for the formation of different headsurfaces, which preferably form different curves at the head piece end,the overall surface can have greater resistance to bending andpuncturing, cutting or penetration can be more easily achieved. Thedeformation of the head membrane during the opening operation and therisk of leaks is thus minimal. This permits safe handling even when lesssharp spikes, cutters or thick cannulas are used. The design of thedifferent head surfaces and the provision of a penetration surfaceadditionally provides a simple, economical solution for optimallyadapting caps to the head surfaces, which has significantly smallerelastomer sealing elements compared with DIN ISO 15759, which sealingelements, according to the invention, essentially abut only thepenetration surfaces or parts thereof.

Different types of the head surfaces provided on the head piece cantransition into each other directly or via a connection region. Thearrangement can advantageously be such that, in the case of two types ofhead surfaces, both have a convex curvature or the one head surface isconvex and the other head surface is, relative thereto, concave. Inparticularly advantageous exemplary embodiments, another, third type ofa head surface is provided, which in turn has a different curvature thanthe other two head surfaces.

The arrangement can also advantageously be such that head surfaces areformed rotationally symmetrical and extend concentric to a longitudinalaxis of the container and/or of the transition region and have surfacepieces which are arranged extending transverse to this longitudinalaxis.

A particularly effective increase in resistance to bending of the headmembrane can be achieved with exemplary embodiments in which the headsurface of the first type forms a connecting bridge which spans the freeend of the transition region, wherein the other head surface of adifferent type connects to the connecting bridge at the edge thereof.

Furthermore, the arrangement can advantageously be such that at leastone annularly closed head surface of the second type or of another typeis arranged on the head surface of the first type. The region of thehead surface of the first type surrounded by the annular surface can beprovided as a piercing region/cutting region, which is reinforced by thesurrounding annularly closed head surface.

The arrangement can particularly advantageously also be such that atleast one of the head surfaces forms a bar-type stiffening rib, which ismounted on one adjacent head surface or which connects surface partsarranged next to one another of at least one other head surface to oneanother.

In particularly advantageous exemplary embodiments, at least one headsurface of the first type is formed projecting in the manner of aknuckle relative to an adjacent head surface of another type.

Such exemplary embodiments can be particularly advantageously designedsuch that the projecting head surface and the corresponding cap form atleast one connecting part with distinctive connection characteristics,to which a corresponding connecting part in the form of an adapter canbe removably attached for a media removal and/or media feed from or intothe container. These adapter systems are state of the art. Such adapterscan also, as is disclosed in WO 2012/143921 A1 or EP 0 565 103 B1, forexample, be used for a measured addition of a separate fluid, semi-solidor solid drug component to the container. For the direct transfer of theadditional component from a receptacle containing this additionalcomponent, such adapters have a spike which is sharp on both sides forestablishing a direct connection, by means of which even solidsubstances, for instance in powder form, can be introduced into thecontainer. The design of the head piece and of the puncturing surfacesenvisaged according to the invention permits application-appropriatespacing of puncture points, e.g. in order to simultaneously apply spikeswith wide drip chambers (DIN EN ISO 8536-4) and an infusion device witha dosing container (DIN EN ISO 8536-5).

The container according to the invention, for example, in the form of aninfusion bottle, can also have at least two opposite or adjacent fillingand/or removal openings, on at least one of which a head piece with headsurfaces of a first type and head surfaces of a second type is providedas an integral component of the container.

The subject matter of the invention also comprises multiple-chambercontainers (e.g. WO 0076745 A1), which have more than one adjacentand/or opposite filling or removal openings, on at least one of which ahead piece with head surfaces of a first type and of a second type isprovided as an integral component of the container.

The subject matter of the invention also comprises caps with elastomersealing elements, which essentially abut only on the penetrationsurfaces of the respective head piece.

The invention is explained in detail below with reference to exemplaryembodiments depicted in the drawings, in which:

FIG. 1 shows, in a depiction which is slightly enlarged compared with apractical embodiment, a front view of a container in the form of aninfusion bottle with two removal openings, the upper one of which in thefigure is provided with a head piece according to the prior art of DINISO 15759;

FIG. 2 shows, depicted on a smaller scale, a perspective oblique view ofthe bottle of FIG. 1;

FIG. 3a shows, depicted at approximately twice the size compared with apractical embodiment, a perspective oblique view of an exemplaryembodiment of a head piece of a container according to the invention;

FIG. 3b shows a partial cross-section, which shows a modifiedcross-sectional shape for the bar-type rib of the head piece of theexemplary embodiment of FIG. 3 a;

FIG. 4a shows a front view of another exemplary embodiment of thecontainer;

FIGS. 4b and 4c show a front view or a top view of the head piece ofanother exemplary embodiment of the container according to theinvention;

FIGS. 5a to 5c show a front view or perspective oblique views of otherexemplary embodiments;

FIGS. 6a and 6b show a front view and a perspective oblique view,respectively, of another exemplary embodiment of the container;

FIG. 7a shows a front view of another exemplary embodiment of thecontainer;

FIGS. 7b, 7c, 7d show perspective oblique views (7 b, 7 d) or a sideview (7 c) of a modified embodiment of the head piece of the exemplaryembodiment of FIG. 7 a;

FIGS. 8a and 8b show a front view and a perspective oblique view,respectively, of another exemplary embodiment;

FIGS. 9a and 9b show a front view and a perspective oblique view,respectively, of another exemplary embodiment;

FIGS. 10a and 10b show a front view and a perspective oblique view,respectively, of another exemplary embodiment;

FIG. 11 shows a perspective oblique view of a head piece of anotherexemplary embodiment;

FIG. 11a shows a depiction corresponding to FIG. 11 with an additionalreinforcing rib;

FIGS. 12 and 13 show perspective oblique views of two other exemplaryembodiments of a head piece;

FIG. 13a shows a modification of the exemplary embodiment of FIG. 13with an additional reinforcing rib;

FIG. 14 shows a perspective oblique view of a modified embodiment of thehead piece of FIGS. 10a and 10 b;

FIG. 15a shows a front view of another exemplary embodiment of thecontainer with a sectional depiction of a cover cap of the head piece inthe state prior to a welding operation;

FIG. 15b shows a perspective oblique view of a cover cap for the headpiece of the exemplary embodiment of FIG. 5 a;

FIG. 15c shows a sectional depiction of a head piece with a welded oncap according to FIG. 15b after the welding operation;

FIG. 16a shows a perspective oblique view of a modified embodiment of acover cap for a container according to the invention according to theexemplary embodiment of FIG. 11;

FIG. 16b shows a sectional depiction of the cap according to FIG. 16a ona head piece according to the exemplary embodiment of FIG. 11;

FIG. 17 shows a depiction, corresponding to FIG. 1, of an embodiment ofan infusion bottle with two removal openings, one of which is providedwith a screw connection;

FIG. 18 shows a depiction, corresponding to FIG. 1, wherein a head pieceaccording to FIG. 5a is provided on a removal opening, and

FIG. 19 shows the infusion bottle of FIG. 18, wherein the head piecelying at the bottom is provided with an end cap according to FIG. 15b ,prior to the welding operation.

FIGS. 1 and 2 show a container produced using the mentioned BFS methodin the form of an infusion bottle 1 with a top removal position 3 and abottom removal position 5. The bottle 1 is produced from a plasticmaterial such as LDPE, HDPE, PP or PET. In the case of a multiple layerembodiment, polyolefins in combination with EVOH, PET, COC, COP, PA orthe like, can be provided, for example. In FIGS. 1 and 2, the bottle 1lying at the top in the drawings has a head piece 7, which correspondsto the prior art according to DIN ISO 15759. In the case of containerswith head pieces of this type, caps with an elastomer sealant (DIN ISO15759) can be connected, e.g. by means of welding, injection molding orsealing, to the head piece of the filled and sealed bottle 1. On thefront end of the head piece 7, a head surface 11 is provided for removaland/or feeding operations, which, in the form of a head membranepenetrable by means of a cannula or a spike, spans a transition region13 at which the head piece 7 transitions into the neck part 9 of thebottle 1. The head surface 11 formed by this head membrane spans thetransition region 13 with a uniformly convex curvature in the prior art.

FIGS. 3 to 15 a and 17 to 19 show, to some extent in separatedepictions, i.e. without depicted bottle bodies 1, different exemplaryembodiments of containers according to the invention with head pieces 7,which have different types of head surfaces. FIG. 3a thus shows anexample in which, in addition to a head surface 11 of the first type,which spans the transition region 13 with a convex curvature like thehead surface 11 of the prior art, a head surface of the second type inthe form of a reinforcing rib 15 is provided, which forms a barprojecting significantly from the head surface 11 of the first type,which spans the head surface 11 and lies diametrically therein. Thisbar-type rib 15 increases the resistance to the bending of the curvatureof the head surface 11 into the inside of the container and permits thesecure abutment of the elastomer component of a cover cap (not depicted)and thus the secure sealing of the pierced spike. FIG. 3b shows amodified cross-sectional shape for the reinforcing rib 15 of FIG. 3a ,wherein the top side of the rib 15 is not flat, but convex.

FIGS. 4a to 4c provide a bridge body 17 as a reinforcing or stiffeningelement, which, in the form of a projecting head with an oval contour,spans the free end of the transition region 13 and which, at its fronttop end, forms a head surface 19 of the first type with only a slightlyconvex curvature. Another head surface 21 connects to the foot of thebridge body 17, which other head surface is once again convex, but withgreater curvature than the head surface 19. As FIG. 4c shows, thelargest width of the bridge body 17 is somewhat more than half of thediameter of the transition region 13, and the height of the bridge body17, measured relative to the surrounding head surface 21, is somewhatless than half of the largest width of the bridge body 17 as thecomparison of FIGS. 4b and 4c shows. From the front head surface 19, theside wall 23 extends out from a rounding 25 surrounding the head surface19, to the surrounding head surface 21.

FIGS. 5a and 5b show an exemplary embodiment, in which two nipple-shapedknuckles 29 project from a head surface 27 which spans the transitionregion 13. The knuckles 29 lie at a distance from one another on a lineextending diametrically on the head surface 27 and form, on theirrespective front end, a round, easily penetrable head surface 31. Thesehead surfaces have only an extremely slight curvature, i.e. they extendalmost parallel to the main plane of the head surface 27. A side wall 33with concave curvature connects the front face surface 31 with thesurrounding head surface 27. In another embodiment (not depicted), abar-type rib, as in FIGS. 3a and 3b , can extend between the knuckles29. FIG. 5c shows a modification compared with FIGS. 5a and 5b , whereinthe head surface 31 is not provided at the top end of the knuckles 29,but is rather set back towards the inside.

FIGS. 6a to 9b show other exemplary embodiments, in which all of thehead surfaces are formed rotationally symmetrical and extend concentricto a longitudinal axis 35 of the transition region 13. In the example ofFIGS. 6a and 6b , a convex head surface 37 is formed torus-like on thefront edge of the circular cylindrical transition region 13. This headsurface 37 surrounds concentrically a circular head surface 39 in theform of a concave depression, from which in turn another head surface 41rises in the form of a convex dome, concentric to the axis 35. Theradial width of the edge-side, outer head surface 37 is approximately ⅙of the diameter of the transition region 13. The diameter of the domeforming the head surface 41 is approximately ⅓ of the diameter of thetransition region 13. The depth of the depression forming the headsurface 39 is in turn approximately 1/16 of the diameter of thetransition region 13.

The head piece 7 of the exemplary embodiment of FIGS. 7a to 7c has aconvex head surface 43 connecting to the front edge of the circularcylindrical transition region 13, which head surface, as part of atorus, encircles the transition region 13. This head surface 43surrounds a knuckle 45, concentric to the axis 35, which forms a convexhead surface 47 at its top side. The radial width of the outer edge-sidehead surface 43 corresponds to the width of the edge-side head surface37 of the example of FIGS. 6a and 6b . The height of the knuckle 45projecting above the edge-side head surface 43 is approximately ⅛ of thediameter of the transition region 13. In the example shown in FIGS. 7cand 7d , an additional reinforcing rib 48 is provided, which spans thehead surface 47 diametrically.

The exemplary embodiment of FIGS. 8a and 8b has a head surface 51 in theform of a convex annular surface connecting to the circumferential edge52. A knuckle 53 rises from the central region of this annular surfaceconcentric to the axis 35, which knuckle forms a head surface 55, whichis also convex, but with greater curvature than the head surface 51. Thediameter of the cylindrical transition region 13 is approximately twoand a half times the diameter of the knuckle 53. The height of theknuckle 53 relative to the surrounding head surface 51 is approximately⅙ of the diameter of the knuckle 53.

The exemplary embodiment of FIGS. 9a and 9b has, like the exemplaryembodiment of FIGS. 6a and 6b , a head surface 59 with convex curvaturesurrounding the circumferential edge 57 of the cylindrical transitionregion 13, to which a depression-like recess is connected and the baseof which forms a concave head surface 61. The difference compared withthe example of FIGS. 6a and 6b is only that no knuckle is located in thecenter of the head surface 61. The width of the convex head surface 39at the edge 57 is, in the example of FIGS. 9a and 9b , a little greaterthan the width of the edge-side head surface 37 in the example of FIGS.6a and 6b . The width of the head surface 61 formed by the centraldepression, or pocket, is a little more than half of the diameter of thetransition region 13. The axial depth of the depression forming the headsurface 61 is approximately 1/10 of the diameter of the transitionregion 13.

The exemplary embodiment of FIGS. 10a and 10b resembles the exemplaryembodiment of FIGS. 4a to 4c to the extent that a bridge region 63 isprovided, which projects from a convex head surface 65, which connectsto the edge 66 of the connecting region 13. By contrast with the ovalbridge body 17 of FIGS. 4a to 4c , the bridge region 63 of the presentexample has a contour in the shape of a horizontal figure eight, withside walls 67, which descend from a front head surface 69, relativelysteeply relative to the surrounding head surface 65. As FIG. 10a moreclearly shows, the head surface 69 has a convex curvature. The height ofthe bridge body 63 relative to the surrounding head surface 65 isapproximately ¼ of the diameter of the circular cylindrical transitionregion 13. The largest width of the bridge region 63 at the arms of thefigure eight forming the contour is somewhat less than half of thediameter of the transition region 13.

FIG. 11 shows an exemplary embodiment which, similarly to the headsurface 11 in the exemplary embodiment of FIG. 3, has a convex headsurface 74, which connects to the edge 70 of the transition region 13over the entire circumference thereof. Arranged on this head surface 74are two annular bodies 71 in the form of flat circular rings, which arearranged at a spacing from one another along a line extendingdiametrically over the head surface 74. The external diameter of theseflat rings is approximately ⅙ of the diameter of the transition region13, wherein the annular bodies 71 are arranged such that the spacingbetween them is greater than the spacing of each annular body 71 fromthe circumferential edge 70 of the transition region 13. At their topside, the annular bodies 71 each form a head surface 73 in the form of aslightly convex circular surface.

In addition, as is also the case in the exemplary embodiments of FIGS.3a and 3b , a bar-type reinforcing rib 15 can be provided, extendingdiametrically over the head surface 74, as depicted in FIG. 11 a.

The exemplary embodiment of FIG. 12 resembles the exemplary embodimentof FIGS. 9a and 9b , in other words, it has a depression 77 delimited bythe edge-side, convex head surface 75, which forms a concave headsurface 79. Mounted on the base of the depression 77, a diametricallyextending stiffening rib 81 extends in the form of a straight bar withaxially parallel side walls and a slightly convex top side, which abutsthe edge-side head surface 75 as another head surface 83.

FIG. 13 shows an exemplary embodiment, in which a convex head surface 85continuously spans the transition region 13 between its circumferentialedge 86. In a symmetrical arrangement, chamfers 89 lying diametricallyopposite one another connect at arc-like connecting lines, whichchamfers each form another, slightly convex head surface 91. As FIG. 13ashows, in the example of FIG. 13 too, an additional bar-type reinforcingrib 15 can be provided, which spans the head surface 85.

The exemplary embodiment of FIG. 14 resembles the exemplary embodimentof FIGS. 10a and 10b , wherein side penetration surfaces 101, defined bythe contour shape of the bridge body 63, are formed, however. In thisconfiguration, the penetration surfaces 101 have a maximum spacing fromone another. This is advantageous when both locations are used forpiercing and the corresponding spike or the drip chamber remainstherein. A reinforcing rib 15 is additionally provided in the example ofFIG. 14 to ensure a high level of bending resistance. This reinforcingrib can also have a rounded shape, as depicted in FIG.

3 b.

FIGS. 15a to 16b also show by way of an example cover caps 93, with thedesign shown in FIGS. 15a and 15b being provided for head piecesaccording to the examples of FIGS. 5a to 5c and the design of FIGS. 16ato 16c being provided for a head piece 7 according to the exemplaryembodiment of FIG. 11, for example. The cover cap 93 of FIGS. 15a to 15cis a hollow body made of a plastic, for example, the same material fromwhich the bottle is made. The cover cap 93 has a hollow cylindrical mainpart 92, which spans the transition region 13 of the head piece 7 andhas, at the open end, an edge 95 forming a radial extension, in which acircumferential annular groove 96 is located. In the case of a cover cap93 fixed onto the head piece 7 by means of welding, injection molding,adhesion or sealing, the edge 95 can form a connecting part for anadapter. FIG. 15a shows a state prior to welding. As can be seen, a lug106 is formed on the end edge of the main part 92, which lug forms anenergy guide for welding processes, such as ultrasonic welding. This lug106 is welded so that, once a welding operation has been carried out,the state depicted in FIG. 15c is obtained. Sleeve bodies 97 are moldedonto the top side 94, which sleeve bodies are aligned in such a way thatthey are flush with the knuckles 29 on the head piece 7. In the initialstate, which is depicted in the figures, the sleeve bodies 97 are closedby a disk 98 which can be torn off at predetermined breaking points, atwhich a tab 99 is installed which permits easy tearing off of the disks98 so as to clear the way for access to the elastomer 103 bearingagainst the penetrable head surface 31 of the head piece 7.

The example of FIGS. 16a and 16b differs to this in that, instead of theprojecting sleeve bodies 97 on the top side 94, a dome-shaped hollow boxconstruction 100 is provided, in which two openings 102 are arranged insuch a way that they are flush with the region of the annular bodies 71,which are located on the head surface 74 of the head piece 7. For useoperations, the part of the head surface 74 surrounded by the annularbody 71 can therefore be penetrated via the openings 102. As depicted,an elastomer 103 is provided above the penetration surface delimited bythe annular bodies 71, for the formation of a seal on the penetrationsurfaces.

FIG. 17 shows, in a depiction corresponding to FIG. 1, an embodiment ofthe bottle 1 which has two removal positions 3 and 5 lying opposite oneanother, wherein the access lying at the bottom in the figure isprovided with an external thread 105 and wherein a head piece 7according to the exemplary embodiment of FIG. 1 is located at the topremoval position.

FIG. 18 shows a bottle 1 corresponding to FIG. 17 with a head piece 7according to the example of FIG. 5b located at the bottom removalposition 5.

FIG. 19 shows the bottle 1 of FIG. 18, wherein the head piece 7 at thebottom removal position 5 is provided with a cap 93 according to theexample of FIG. 15 b.

All solutions according to the invention described above have in commonthat the container 1, which is produced using the blow molding, filling,and sealing method, is formed in one piece with its special head piece 7according to the invention, i.e., that, amongst other things, thecontainer wall transitions continuously into the wall of the head piece7.

1. A container having a head piece (7), which container can be or isfilled with a medium and is produced from plastic materials using a blowmolding, filling, and sealing method, comprising a transition region(13) between the container (1) and at least one first type of a headsurface (11), which is arranged on the head piece (7) at a front end andcan be penetrated by means of a piercing or cutting part and extendswith a specifiable curvature, characterized in that at least one secondtype of a head surface (15, 21, 27, 41, 43, 51, 59, 65, 74, 75, 85),which likewise has a specifiable curvature, which matches the curvatureof the head surface (11, 19, 31, 39, 47, 55, 61, 69, 73, 79, 91) of thefirst type, but preferably is different therefrom, is present on thehead piece (7), and in that the head surfaces transition into each otherin such a way that an overall surface is formed, which spans the freeend of the transition region (13) directed away from the container (1),and in that the head piece (7) is an integral component of the container(1).
 2. The container according to claim 1, characterized in that therespective one type of a head surface transitions directly, or via aconnecting region, into the respective other type of a head surface insuch a way that the overall surface is formed.
 3. The containeraccording to claim, characterized in that, with two types of headsurfaces, both have a convex curvature or the one head surface is convexand the other head surface is, relative thereto, concave.
 4. Thecontainer according to claim 1, characterized in that one type of a headsurface (37, 83) is provided, which in turn has a different curvaturethan the other two head surfaces (39, 41, 75, 79).
 5. The containeraccording to claim 1, characterized in that at least one of the headsurfaces is formed rotationally symmetrical and extends concentric to alongitudinal axis (35) of the container (1) and/or of the transitionregion (13) and has surface pieces (15, 48, 83, 91), which are arrangedextending transverse to this longitudinal axis (35).
 6. The containeraccording to claim 1, characterized in that the head surface of thefirst type forms a connecting bridge (15, 17, 63, 81) which spans thefree end of the transition region (13), to which the other head surface(11, 21, 65, 79) of a different type is connected at the edge thereof.7. The container according to claim 1, characterized in that at leastone closed annular body (71) is arranged on the head surface (74). 8.The container according to claim 1, characterized in that at least oneof the head surfaces (11, 79) has at least one bar-type stiffening rib(15, 48, 81).
 9. The container according to claim 1, characterized inthat at least one head surface (19, 31) of the one type projects in themanner of a knuckle relative to an adjacent head surface (21, 27) ofanother type.
 10. The container according to claim 9, characterized inthat the bridge body (17) or knuckle (29) forms at least one connectingpart with distinctive connection characteristics, to which acorresponding connecting part in the form of an adapter can be attachedfor a media removal and/or media feed from or into the container (1).11. The container according to claim 1, characterized in that it has atleast two filling and/or removal openings (3, 5), on at least one (3) ofwhich a head piece (7) with head surfaces (11, 19, 31, 39, 47, 55, 61,69, 73, 79, 91) of a first type and head surfaces (15, 21, 27, 41,43,51, 59, 65, 74, 75, 85) of a second type is provided.
 12. The containeraccording to claim 1 having at least two chambers separated from oneanother, characterized in that it has at least two filling and/orremoval openings (3, 5), on at least one of which a head piece (7) withhead surfaces (11, 19, 31, 39, 47, 55, 61, 69, 73, 79, 91) of a firsttype and head surfaces (15, 21, 27, 41, 43, 51, 59, 65, 74, 75, 85) of asecond type is provided.
 13. A cap with an elastomer sealing element(103), which can be connected to a head piece (7) of a container (1)according to claim 1, characterized in that the elastomer sealingelement (103) is essentially only located opposite the penetrationsurface of the head piece (7), is pressed on or connected or abuts witha small spacing.
 14. The cap according to claim 13, characterized inthat it has an energy guide (94), which permits a welding of the cap(93) and the container (1) by means of ultrasonic welding, frictionwelding or vibration welding.
 15. The cap according to claim 13,characterized in that the elastomer sealing element (103) has an openingfor a spike and is preferably formed cylindrical or annular.